This is the new *Amazon CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [Amazon CloudFormation User Guide](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/Welcome.html).

# AWS::MediaPackageV2::ChannelGroup
<a name="aws-resource-mediapackagev2-channelgroup"></a>

Specifies the configuration for a MediaPackage V2 channel group.

## Syntax
<a name="aws-resource-mediapackagev2-channelgroup-syntax"></a>

To declare this entity in your Amazon CloudFormation template, use the following syntax:

### JSON
<a name="aws-resource-mediapackagev2-channelgroup-syntax.json"></a>

```
{
  "Type" : "AWS::MediaPackageV2::ChannelGroup",
  "Properties" : {
      "[ChannelGroupName](#cfn-mediapackagev2-channelgroup-channelgroupname)" : {{String}},
      "[Description](#cfn-mediapackagev2-channelgroup-description)" : {{String}},
      "[Tags](#cfn-mediapackagev2-channelgroup-tags)" : {{[ Tag, ... ]}}
    }
}
```

### YAML
<a name="aws-resource-mediapackagev2-channelgroup-syntax.yaml"></a>

```
Type: AWS::MediaPackageV2::ChannelGroup
Properties:
  [ChannelGroupName](#cfn-mediapackagev2-channelgroup-channelgroupname): {{String}}
  [Description](#cfn-mediapackagev2-channelgroup-description): {{String}}
  [Tags](#cfn-mediapackagev2-channelgroup-tags): {{
    - Tag}}
```

## Properties
<a name="aws-resource-mediapackagev2-channelgroup-properties"></a>

`ChannelGroupName`  <a name="cfn-mediapackagev2-channelgroup-channelgroupname"></a>
The name of the channel group.  
*Required*: Yes  
*Type*: String  
*Pattern*: `^[a-zA-Z0-9_-]+$`  
*Minimum*: `1`  
*Maximum*: `256`  
*Update requires*: [Replacement](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`Description`  <a name="cfn-mediapackagev2-channelgroup-description"></a>
The configuration for a MediaPackage V2 channel group.  
*Required*: No  
*Type*: String  
*Minimum*: `0`  
*Maximum*: `1024`  
*Update requires*: [No interruption](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Tags`  <a name="cfn-mediapackagev2-channelgroup-tags"></a>
The tags associated with the channel group.  
*Required*: No  
*Type*: Array of [Tag](aws-properties-mediapackagev2-channelgroup-tag.md)  
*Update requires*: [No interruption](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

## Return values
<a name="aws-resource-mediapackagev2-channelgroup-return-values"></a>

### Ref
<a name="aws-resource-mediapackagev2-channelgroup-return-values-ref"></a>

When you pass the logical ID of this resource to the intrinsic `Ref` function, `Ref` returns`arn:aws:mediapackagev2:region:AccountId:ChannelGroup/ChannelGroupName`.

For more information about using the `Ref` function, see [https://docs.amazonaws.cn/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference-ref.html](https://docs.amazonaws.cn/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference-ref.html).

### Fn::GetAtt
<a name="aws-resource-mediapackagev2-channelgroup-return-values-fn--getatt"></a>

The attributes of the channel group. You can only use the `GetAtt` function for `readOnly` properties. For example, you can use the `GetAtt` function to retrieve the read-only `CreatedAt` property.

#### 
<a name="aws-resource-mediapackagev2-channelgroup-return-values-fn--getatt-fn--getatt"></a>

`Arn`  <a name="Arn-fn::getatt"></a>
The Amazon Resource Name (ARN) of the channel group.

`CreatedAt`  <a name="CreatedAt-fn::getatt"></a>
The timestamp of the creation of the channel group.

`EgressDomain`  <a name="EgressDomain-fn::getatt"></a>
The egress domain of the channel group.

`ModifiedAt`  <a name="ModifiedAt-fn::getatt"></a>
The timestamp of the modification of the channel group.